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Re-emergence of glanders in India - Report of Maharashtra state
Praveen Malik1, S K Khurana, S K Dwivedi
1National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India.
Abstract:
Glanders, a notifiable highly contagious disease primarily of equids, is a disease of high zoonotic importance. Caused by gram-negative bacillus, Burkholderia mallei, the disease was restricted to certain pockets of India with sporadic cases. Recently, a major outbreak of glanders occurred in India starting from Maharashtra. Following clinical signs and symptoms and laboratory investigations on serum, nasal swab and pus swab samples, it was confirmed as glanders among equines in Pune and Panchgani areas of Maharashtra. One pus sample and three nasal swabs yielded B. mallei isolates while 23 serum samples were found positive for glanders by complement fixation test (CFT). The disease was successfully controlled in the state by following strategies for prevention of spread of the disease to other areas in accordance with Glanders and Farcy Act, 1899. Follow up of the occurrence in Maharashtra revealed negative status based on testing and physical surveillance on more than 3,500 equines thereafter. Investigations indicated that the nidus of infection may be present elsewhere in North India.
Insights
A recent outbreak of glanders, a contagious equine disease with zoonotic potential, occurred in India. Control measures were successful in Maharashtra, but the infection
Area of Science:
- Veterinary Microbiology
- Zoonotic Diseases
- Epidemiology
Background:
- Glanders is a highly contagious, notifiable disease affecting equids, caused by Burkholderia mallei.
- It poses significant zoonotic risks and was previously confined to specific regions in India.
- A notable outbreak recently emerged in Maharashtra, India.
Purpose of the Study:
- To report and analyze a major outbreak of glanders in equids in Maharashtra, India.
- To detail the diagnostic methods and control strategies employed.
- To assess the effectiveness of control measures and identify potential sources of infection.
Main Methods:
- Clinical examination of affected equids.
- Laboratory analysis of serum, nasal swabs, and pus samples.
- Isolation of Burkholderia mallei.
- Complement Fixation Test (CFT) for serological diagnosis.
- Implementation of control strategies as per the Glanders and Farcy Act, 1899.
Main Results:
- Glanders was confirmed in equines in Pune and Panchgani areas of Maharashtra.
- Burkholderia mallei isolates were obtained from pus and nasal swabs.
- 23 serum samples tested positive for glanders via CFT.
- The outbreak was successfully controlled in Maharashtra.
- Subsequent surveillance of over 3,500 equines showed negative results.
Conclusions:
- The outbreak in Maharashtra was effectively managed using established control protocols.
- Despite successful containment, the possibility of the infection's origin in North India warrants further investigation.
- Continued vigilance and surveillance are crucial for preventing future outbreaks of this zoonotic disease.
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